نتایج جستجو برای: lemna
تعداد نتایج: 882 فیلتر نتایج به سال:
A sensitive and specific method was developed for assay of aspartokinase (EC 2.7.2.4) in crude extracts of Lemna paucicostata. Lysine inhibited approximately 93%, and threonine approximately 6%; together, these amino acids inhibited 99%. Inhibition by lysine was synergistically increased by S-adenosylmethionine, which by itself had no effect on activity. Essentially complete inhibition of threo...
During initial exposure to 40 nanomolar propargylglycine (PAG), Lemna paucicostata colonies undergo abnormal fragmentation and a lag in frond emergence, most severe at 24 to 48 hours. Thereafter, frond emergence resumes and the frond/colony ratio rises. Such ;adapted' plants withstand subculture into the same concentration of PAG without fragmentation or decreases in frond emergence, and displa...
Transfer of Lemna minor fronds to adverse or stress conditions produces a large increase in the rate of protein degradation. Cycloheximide partially inhibits stress-induced protein degradation and also partially inhibits the protein degradation which occurs in the absence of stress. The increased protein degradation does not appear to be due to an increase in activity of soluble proteolytic enz...
Phytoremediation, a plant based green technology, has received increasing attention after the discovery of hyperaccumulating plants which are able to accumulate, translocate, and concentrate high amount of certain toxic elements in their above-ground/harvestable parts. Phytoremediation includes several processes namely, phytoextraction, phytodegradation, rhizofiltration, phytostabilization and ...
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